35 × 9.5 × 4.5 cm Wood Block

Details

9AA200 - Lab Hardware

Demo use only

Instances

Instance #369
G2B20A - Demo West (Duane Physics)
Good - Normal Wear Demo use only

Used in these demonstrations

Side-by-side photos: left shows a small brass cylinder with hook on an Ohaus Scout Pro scale reading 100.4 g; right shows the overflow cup on a wooden block with an empty collection beaker beneath its spout, scale reading 12.5 g

Archimedes' Principle, Overflow Cup

Measure the density of an irregular body heavier than water using an overflow cup. Weigh the test body, immerse it to collect the displaced water, and divide the two weights …
Tilting metal frame with two glass vials connected by tubes, tilted so oil fills the right vial; colored letter cards (A, B, C, D) are placed behind each vial for comparison

Disappearing Glass

Demonstrates index matching: when two transparent materials share the same refractive index, light crosses their interface without refraction or reflection, making the boundary invisible. Students see this dramatically as glass …
Copper plank inclined on a wooden block, with a cylindrical magnet and stainless steel cylinder at the top and a clear plastic catch box at the bottom
Safety

Eddy Current Braking

Students observe Lenz's law in action: a rare-earth magnet rolls at constant (very slow) velocity down a copper ramp while a non-magnetic cylinder accelerates normally. A second configuration shows a …
Basswood strip supported at each end on wooden blocks, bending visibly under a brass mass with hook placed at center

Normal Force

A flexible basswood strip bends visibly under load, showing that normal forces arise from elastic deformation of the supporting material. Heavier masses produce greater deflection, making the connection between deformation …
Neoprene sheet with yellow dot grid stretched between bicycle wheel rims with spring clamps, marble launcher held at right, colored marbles and foam-tipped rod on sheet

Singularity

A stretched rubber sheet provides a 2D analog of spacetime curvature from General Relativity. Students observe marbles traveling straight lines on a flat sheet, then curved geodesic paths when the …

Reserve This Equipment

Demo use only

This equipment supports lecture demonstrations and cannot be reserved directly — it is assigned automatically as part of a demonstration. To use it, request a demo that includes it.